Use SIZE_MAX instead of SIZE_T_MAX, the latter is not POSIX and

remove redundant check on size. ok millert@ deraadt@

src/lib/libc/stdlib/calloc.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: calloc.c,v 1.10 2005/08/08 08:05:36 espie Exp $ */
+/*	$OpenBSD: calloc.c,v 1.11 2006/04/02 18:22:14 otto Exp $ */
 /*-
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
@@ -38,7 +38,7 @@ calloc(size_t num, size_t size)
 {
 	void *p;
 
-	if (num && size && SIZE_T_MAX / num < size) {
+	if (num && SIZE_MAX / num < size) {
 		errno = ENOMEM;
 		return NULL;
 	}

src/lib/libc/stdlib/malloc.3

@@ -30,7 +30,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: malloc.3,v 1.43 2006/03/26 19:56:08 ray Exp $
+.\"	$OpenBSD: malloc.3,v 1.44 2006/04/02 18:22:14 otto Exp $
 .\"
 .Dd August 27, 1996
 .Dt MALLOC 3
@@ -100,7 +100,7 @@ If
 .Fn malloc
 must be used, be sure to test for overflow:
 .Bd -literal -offset indent
-if (num && size && SIZE_T_MAX / num < size) {
+if (num && SIZE_MAX / num < size) {
 	errno = ENOMEM;
 	err(1, "overflow");
 }